‘Subject: Malach. Determine loyalty.’

The sanctioned psyker murmured the words to himself before lifting his gaze to the figure restrained within the chamber. The Astartes stood motionless, dark armour heavy with augmentation, scarred ceramite dulled by countless impacts. He could have been a statue, had statues possessed such mass.

The heraldry was Iron Hands. The geometry was not.

Voss stepped forward. ‘I will examine your mind. Compliance is expected. Confession is advised. The Inquisition is merciful only in efficiency.’

‘Proceed,’ Malach replied, his voice a low distortion through grille and vox.

Voss inhaled, tasting incense and machine oil, and opened his third sight.

He expected fire.

He found architecture.

An iron fortress rose around him — not dream, not metaphor — construction. Segmented corridors extended in disciplined lines. Reinforced vault doors stood at measured intervals. Load-bearing columns anchored partitioned sectors. Hard angles. Exact tolerances. No trophies.

He listened for rage.

The sons of the IV were not known for serenity.

There was no turbulence here. No simmering resentment, no echo of bitterness. Only certainty.

It unsettled him more than fury would have.

This was not a mind restraining itself.

It was a mind engineered against weakness.

Three sectors deep, Voss found the scar.

Not corruption.

Damage.

Corridors warped inward, as though crushed by immense pressure. Surfaces fused into seamless plates. Geometry collapsed. Heat distortion rippled through the airless construct. Sound arrived dulled, as if filtered through deep water.

Momentarily, Voss felt submerged. His wards hissed in protest.

He knelt, pressing psychic senses to the distortion. There was no iridescent sheen of the Warp.

Psychic trauma.

Not infection.

Something had struck this mind with intolerable force.

It had not yielded.

Pressure built without warning.

No herald. No challenge.

The fortress trembled as a presence forced entry, compressing corridors, bending lines not meant to bend. Iron Warrior voices echoed unnaturally, stretched and layered, speaking in harmonics that grated against Voss’s skull.

The intruder did not parley.

It anchored.

Warp pressure flooded the architecture, seeking purchase in memory and doubt. Voss tasted copper as his own defences strained.

This was no minor witch.

Malach did not answer with a scream or defiance.

He calculated.

Data scrolled across the fortress walls — vectors, distances, probability curves.

He assessed survival probability.

It was negligible.

There was no fear in the assessment. Only acceptance of parameters.

The sorcerous presence swelled, confident.

And Malach withdrew from the psychic front entirely.

The memory overlaid.

A manufactorum deck. The corpses of brothers littering the floor. Air thick with ash. A sorcerer of the IV Legion standing within detonation radius.

Malach looked up.

Registered target.

Registered proximity.

He met the sorcerer’s gaze.

No curse. No oath.

He triggered the hidden shaped charges beneath his ceramite armour.

White.

Impact.

Ceramite ruptured outward in a sphere of annihilation. The psychic shockwave tore through the fortress construct, hurling Voss backwards. His wards flared, barely containing the echo of that detonation.

Then silence.

The sorcerous presence was gone.

The fortress remained.

Scarred.

Standing.

Voss understood.

Malach had not defeated the intruder within the mind.

He had erased the battlefield in reality.

The present reasserted itself.

Voss steadied within the inner architecture, senses extended.

Something hummed beneath primary cognition.

Not memory.

Protocol.

Deep within the foundation lay an automated conditional, nested with mechanical precision:

If Warp resonance exceeds threshold → purge.

No hesitation.

No moral qualifier.

The command sat armed at all times, tied to bio-signs and internal charges Voss now dimly perceived through the link. Malach carried annihilation within his own flesh, a final solution awaiting a defined variable.

The mind was always ready to die.

Voss recoiled.

Loyalty, reduced to arithmetic.

He searched for doubt.

There was none.

Contact bled both ways.

Though Malach did not actively push, the link transmitted absence as keenly as presence. Voss felt the shape of a mind that had excised resentment like diseased tissue.

He lived with doubt as constant companion. Every whisper might be his own — or something else. Every decision carried risk of damnation. He envied this fortress, this clarity purchased through amputation of feeling.

The envy was sharp.

And dangerous.

For a heartbeat he considered nudging the conditional. Testing the resolve. Proving to himself that such certainty could break.

The thought was his own.

He withdrew immediately, appalled.

The mind’s eye was not merely a weapon.

It was a mirror.

Voss disengaged.

The chamber snapped back into focus. Light. Ferrocrete. The faint hum of restraint fields powering down.

Malach stood as before, unmoving. After a moment he raised a gauntleted hand and disengaged his helm. Seals parted with a hiss. Augmetics framed scarred flesh. One eye was entirely bionic; the other regarded Voss without hostility.

Without warmth.

He inclined his head.

Acknowledgement of completed procedure.

Voss felt smaller outside the fortress than he had within it.

He turned to his data-slate and began his report.

Loyalty probability: stable.

No evidence of Warp corruption. Psychic trauma consistent with hostile sorcerous engagement. Subject maintains autonomous termination protocol in event of compromise.

His stylus paused.

I find myself envious—

The words glared up at him.

Envy was a crack. A place where pressure might enter.

He deleted the line.

Final entry:

Recommend continued utilisation. Isolation inadvisable.

He signed with a steady hand.

As he exited the chamber, Voss reinforced his wards with unusual care.

Not against Malach.

Against himself.